Kaito is a frail boy who hunts slimes on the uppermost level of the city's dungeon. One day, he finds and defeats a glowing slime that leaves behind a very special card, changing Kaito's life forever.
Aren't rare cards worth 
hundreds of millions of yen?
أليست قيمة تلك البطاقات النادرة مئات الملايين من الين؟
Für so eine Karte
kriegst du doch Millionen.
¿No valen miles de millones?
¿Esas no se venden por millones?
Le carte rare non valgono
centinaia di milioni di yen?